选择培养基
Note the following functionalities of various background processes： 1. Record the checkpoint information in data file headers. 2. Perform recovery at instance startup. 3. Cleanup unused temporary segments. 4. Free the resources used by a user process when it fails. 5. Dynamically register database services with listeners. 6. Monitor sessions for idle session timeout. Which option has the correct functionalities listed for a background process（） ["Archiver Process （ARCn）： 1， 2， 5","System Monitor Process （SMON）： 1， 4， 5","Process Monitor Process （PMON）： 4， 5， 6","Database Writer Process （DBWn）： 1， 3， 4"]
桌面系统管理为什么强调正版的使用（） ["完善的售后服务和较小的安全风险","国家要求正版化","性价比很高","能获得及时的升级"]
班组交接班记录填写时，一般要求使用的字体是（）。 ["宋体","仿宋","正楷","隶属"]
The TS1130 tape drive is designed for high-performance computing environments where highreliability, capacity, and performance are mandated. In addition to TS3400, TS3500 and 3494 tapelibraries, which one of the following environments should be considered for its use?（） ["HP tape libraries ","Dell tape libraries ","Quantum tape libraries ","Sun Powderhorn tape libraries (Silos)"]
举例说明心理测验在人员筛选中的作用。
